Eyelet-setting machine



(No Model.) V

- E. B. STIMPSON, Jr. BYELET SETTING MAGHINE.

Patented u; 8, 1887.

N9. 372,826. Eff."

IIIIIH M l N. PETERSv Fholu-Lilhogmphun Washingion. o n.

UNITED STATES PATENT Prion.

EYELET-SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No.3'72,826, dated November 8, 1887.

Application filed March 31, 1887. Serial No. 233,104. (No model.)

To all whom it may concern.- I

Be it known that I, EDWIN B. STIMPsoN, Jr. of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Machines for Setting Eyelets and other Devices, of which the following is a specification.

My invention more particularly relates to machines for setting eyelets, and which comprises a punch-mandrel which is reciprocated by means of a lever in suitable guides, and a feeding-box in which the eyelets are placed and which has a suitable channel through which the eyelets are conducted downward and delivered one by one to the setting-punch; but the invention or certain features thereof may be embodied in other-machines having punch-mandrels,and which are employed in setting lacing-studs or other small devices analogous to eyelets.

One feature of my invention consists in the combination,with a punch-mandrel and its operating-lever, of a cam pivoted at one end to the frame on the side of the mandrel opposite the pivot of the lever, and having its free end interposed between the lever and the mandrel, so that the lever bears solidly upon the cam and the cam bears solidly upon the mandrel, whereby the mandrel is given a longer movement than could be obtained by the lever bearing directly upon it. Preferably in the above combination the upper surface or top of the cam on which the lever bears is convex and the portion of the lower edge or side of the lever bearing on the cam is concave, and the purpose of the cam interposed between the mandrel and the lever is to increase the length of stroke imparted to the punch-mandrel by a comparatively short movement of the lever. In machines of this character the punch-mandrel carries an upwardly-yielding spring-actuated pin, which, as the mandrel is pushed downward, first enters the, eyelet presented below the pin by the feeding-channel, and as the mandrel continues its downward movement the eyelet passes over a fixed post, and the pin is arrested by striking against the end of said post while the mandrel and punch continue their downward movement and the punch sets the eyelet in the leather or other fabric, or, in

, other words, turns over its edge so as to secure it in' place. The feeding-channel must be moved laterally out of the line of the punchmandrel as the latter descends. And another feature of my invention consists in a novel combination of mechanism, hereinafter pointed out in the claims, whereby the feeding-box and its channel are moved laterally relatively to the mandrel and out of the path of the mandrel as it descends. In machines of this character thefeed-box usually containsabrush, and has at its lower edge notches or apertures through which the eyelets escape, one at a time,'into a segmental portion of the feedingchannel. As heretofore constructed, one of these feeding-boxes has only been adapted to deliver eyelets of a single size, and the object of another feature of my invention is to provide a slight attachment for the feeding-box, whereby it will be adapted for properly feeding eyelets of differentsizes. This attachment consists of two or more shields or side portions,which are interchangeably fitted in a suitable opening in the side wall of the feedingbox, and which have their lower edges formed with delivery-notches of different sizes. These shields or side portions are removably secured to the feeding-box, and by simply detaching one shield or side portion from the feedingbox and substituting-another shield. or side portion having notches of a different size the machine may be adapted for a differentsized eyelet.

In the accompanying drawings, Figure 1 is a partly sectional elevation of a machine for setting eyelets, and embodying my invention. Fig. 21s a plan of such machine. Fig. 3 is a sectional view of the feeding -bOX upon the plane of the dotted line x m, Fig. 2; and Figs. 4 and 5 are respectively side views of shields having notches of different sizes, and which are interchangeably fitted to the feeding-box.

Similar letters of reference designate corresponding parts in all the figures.

A designates the punch-mandrel, which is adapted to reciprocate vertically in suitable guides formed in the frame B.

O designates a lever fulcrumed at 0 and by which the mandrel may be moved in one direction or downward, and G designates a spring, whereby the mandrel may be moved upward or returned after each setting opera- ICO tion. The operating-leverO may be actuated by a rod, 0, from a treadle. (Not here shown.) In the end of the mandrel A is secured a setting-punch, A, of suitable shape, and centrally of this punch is a pin, 0, which is adapted to yield vertically, and which is in line with the post 0, arranged immediately below the mandrel A. Thcmandrel A has at the lower end an internal bore, 0, to which is iitted a head, c upon the pin 0, and by means of a spring, 0 the pin 0 is held downward until, by the movement of the punch-mandrel A, the pin comes upon the top of the post 0. The pin is thus held against further downward movement, but the mandrel and punch A travel ahead, and the punch properly sets the eyelet upon the shoulder c" on the post 0.

D designates a feeding-box, in which eyelets or other devices to be fed to the machine are placed, and which has extending downward from it, and to a point in close proximity to the pin- 0, a channel, D, by which the eyelets are conducted downward to the pin 0. At the bottom surface of the feeding-box D, on its interior, are notches d, through which eyelets may escape into a portion, D of the feedingchannel, which is concentric with the box D, as is best shown in Fig. 2.

As best shown in Figs. 2 and S, a brush, d, is arranged within the box D, and the shaft of the brush has an arm, d", which is connected with a bar or rod, (1, having a fixed attach ment to the frame B at d. The brush d has no direct rotary motion imparted to it; but as the box D is moved laterally toward and from the punch the brush d, owing to the rod-coir nection, d, receives an oscillating motion upon its pivot. As is best shown in Figs. 1 and 3, the notches (Z in the feedingbox are not, according to my invention, formed directly in the side wall of the box, but are formed in a shield or curved side portion, d, which fits an opening, (1, in the box, and is secured in place by a screw, (1. The side portion, d, has a flange or portion which laps on the inner side of the box, and through which the screws (7? are inserted.

The shield or side portion, (1 has the notches formed in its lower edge and has an outwardlyprojecting flange, (i which overlaps the channel portion D, that is concentric with the feeding-box D, as best shown in Fig. 3. For the same machine there may be provided two or more shields or side portions, ash/shown in Figs. 4c and 5, which differ from each other only in having the notches d of different sizes, and by removing the screws 01 the shield or side portion, (i may be readily removed and one having notches d of a different size be substituted in the opening (1.

The feeding-box D is provided with an arm, D, extending downwardly at the side of the frame B, and which, with the feeding-box, is movable laterally toward and from the path of the mandrel A. As here represented, this lateral movement is provided for by swinging links (2", through which the arm D is sup ported.

In the operation of the machine, and when the punch commences its descent, the feedingchannel D terminates at about the point of the pin 0, (represented in Fig. 1,) and as soon as the pin 0 has descended through the last eyelet presented at the end of the channel the feedingchannel D recedes laterally from the pin and the eyelet is guided by the pin downward upon the post 0.

As a means of imparting or transmitting lateral movement to the feeding-box D and the channel D, I have represented a bellorank lever, E, which is fulcrumed ate to the frame B, and one arm of which hasa pin-and slot connection, 6 0'. directly with the mandrel A; while the other arm engages a recess or seat, a, in the supporting-arm Dof thebox D. The pin and slot e 0 provide for the necessary lateral or vibrating movement of the lever E, as it is swung on its fulcrum by the descending mandrel, and the descent of the mandrel moves the feeding-box D and the channel D away from the punch, while the ascending of the mandrel, produced by the spring- C, returns the feedingbox D and chan nel D toward the punch. I t will be observed that through the supportingarm D the bellcrank lever E is connected with the feeding-box D and the channel D, so as to produce their lateral movement.

In order to obtain the necessary power, it will be observed that the distance from the mandrel A to the outer end of the ievcr O, at which the rod 0 is connected, is several times greater than the distance from said mandrel to the fulcrum of the lever; and consequently with a lever of the proportions here shown a great length of movement would ordinarily be necessary to secure the necessary length of movement of the mandrel. To increase the movement of the mandrel A relatively to that of the lever O, I employ a cam, F, which, as here shown, is made in form of a lever fulcrumed at f, and with its free end bearing upon the top of the mandrel A. The top of the cam F has a convex surface,f, upon which bears a concave suri'ace,f ,upon the under side of the lever O, and by this cam, under the necessary conditions, a much greater movement can be imparted to the mandrel A by a given amount of movement of the lever Gthan could otherwise be obtained.

I am aware of Patent No. 286,741, granted to F. A. Smith, Jr., October 17, 1883, for a machine for attaching buttons, and I do not seek to include in my invention anything which is therein shown and described. In that patent is shown a cam-lever which is pivoted to the frame and bears upon the head of the mandrel, and is pivotally connected at its opposite end with the operating-lever, and the purpose of this lever, with its cam-like head, is to enable the main operating-lever to have further movement after the mandrel has been de- ICC pressed, and to hold said mandrel in its depressed position without any further movement. The cam F, which Ihave shown herein, and which is pivoted at one end, and has its free end interposed between the mandrel and lever C, so that the lever bears solidly upon the cam and the cam bears solidly upon the head of the mandrel, is to give the mandrel a longer movement than could be obtained by the lever 0 bearing directly upon the top of the mandrel. By the use of the cam F, ar ranged as herein shown, the movement of the mandrel, which can be producedby the lever G having its arms of given length, is increased nearly threefold.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with the punch mandrel and its operating-lever, of a cam pivoted at one end to the frame on the side of the mandrel opposite the pivot of the lever, and having its free end interposed between the lever and mandrel, so that thelever bears solidly upon the cam and the cam bears solidly upon the mandrel, whereby the mandrel is given a longer movement than could be obtained by the lever bearing directly upon it, substantially as herein described.

2. The combination, with a punch-mandrel and its guides, of the operating-lever 0, having the concave bearing-surface f and-the piv-' oted cam F, interposed between the lever and mandrel and having a convex back, f, on which the concave surface of the lever bears, substantially as herein described.

3. The combination, with the punch mandrel and its operating-lever G, of a feeding-box and a delivery-channel leading therefrom, and a bell-crank lever pivoted directly to the fixed frame, and having its laterally extending arm connected directly with the mandrel, and its otherarm connected with the feeding-box and delivery-channel for moving them laterally relatively to the mandrel, substantially as herein described.

4:. The combination, with a punch-mandrel and its operating devices, of the feeding-box and channel D D, the arm D extending from the box, the links (1 supporting the box through said arm, and the lever E, one arm of which is connected with the mandrel and the other arm of which is connected with thesupportingarm (2 of the feeding-box, substantially as herein described.

5. In a machine for setting eyelets and analogous devices, the combination,with a feedingbox, of two or more removable shields or side portions interchangeably fitted to the box and having in their lower edges delivery-notches, through which the eyelets or other devices are delivered to the feeding-channel, whereby the machine, by substituting one shield or.side

portion for another, may be adapted for feeding eyelets or devices of different sizes, substantially as herein described.

6. The combination, with a feeding-box, D,

having an opening, d, in its side,and a feedingchannel extending from the box, of the removable segment d having a portion lapping on the inner surface of the side wall above the said opening and secured by screws (Z in the box, and provided in its lower edge with deliverynotches, and having an outwardly-projecting flange, 01*, forming the top of the deliverychannel, substantially as herein described.

EDWVIN B. STIMPSON, JR. 

